PHASE 3B/4 RANDOMIZED SAFETY ENDPOINT STUDY OF 2 DOSES OF TOFACITINIB IN COMPARISON TO A TUMOR NECROSIS FACTOR (TNF) INHIBITOR IN SUBJECTS WITH RHEUMATOID ARTHRITIS

This post-marketing study is designed to compare the safety of tofacitinib versus TNF inhibitor with respect to major cardiovascular adverse events and malignancies, excluding non-melanoma skin cancers when given to subjects with rheumatoid arthritis. Other safety events, including non-melanoma skin cancers, hepatic events, infections, and efficacy parameters will be collected and evaluated in the study.